{"title":"Decreased LONP1 expression contributes to DNA damage and meiotic defects in oocytes","authors":"Chuanming Liu, Manlin Xu, Yajie Guan, Lilin Li, Wenwen Liu, Bichun Guo, Xiaoqiang Sheng, Yang Zhang, Jidong Zhou, Xin Zhen, Guijun Yan, Haixiang Sun, Lijun Ding","doi":"10.1002/mrd.23694","DOIUrl":null,"url":null,"abstract":"<p>Meiotic defects in oocytes are the primary reason for decreased female fertility with advanced maternal age. In this study, we revealed that decreased expression of ATP-dependent Lon peptidase 1 (LONP1) in aged oocytes and oocyte-specific depletion of <i>LONP1</i> disrupt oocyte meiotic progression accompanying with mitochondrial dysfunction. In addition, LONP1 downregulation increased oocyte DNA damage. Moreover, we demonstrated that splicing factor proline and glutamine rich directly interacts with LONP1 and mediate the effect of LONP1 depletion on meiotic progression in oocytes. In summary, our data suggest that decreased expression of LONP1 is involved in advanced maternal age-related meiosis defects and that LONP1 represents a new therapeutic target to improve aged oocyte quality.</p>","PeriodicalId":18856,"journal":{"name":"Molecular Reproduction and Development","volume":"90 6","pages":"358-368"},"PeriodicalIF":2.7000,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Molecular Reproduction and Development","FirstCategoryId":"99","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mrd.23694","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Meiotic defects in oocytes are the primary reason for decreased female fertility with advanced maternal age. In this study, we revealed that decreased expression of ATP-dependent Lon peptidase 1 (LONP1) in aged oocytes and oocyte-specific depletion of LONP1 disrupt oocyte meiotic progression accompanying with mitochondrial dysfunction. In addition, LONP1 downregulation increased oocyte DNA damage. Moreover, we demonstrated that splicing factor proline and glutamine rich directly interacts with LONP1 and mediate the effect of LONP1 depletion on meiotic progression in oocytes. In summary, our data suggest that decreased expression of LONP1 is involved in advanced maternal age-related meiosis defects and that LONP1 represents a new therapeutic target to improve aged oocyte quality.
期刊介绍：
Molecular Reproduction and Development takes an integrated, systems-biology approach to understand the dynamic continuum of cellular, reproductive, and developmental processes. This journal fosters dialogue among diverse disciplines through primary research communications and educational forums, with the philosophy that fundamental findings within the life sciences result from a convergence of disciplines.
Increasingly, readers of the Journal need to be informed of diverse, yet integrated, topics impinging on their areas of interest. This requires an expansion in thinking towards non-traditional, interdisciplinary experimental design and data analysis.
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